APA استشهاد

Leo John. (1985). Use of English: Grammar practice activities for intermediate and upper-intermediate students (Student's book). Cambridge: Cambridge Univ. Press.

استشهاد بنمط شيكاغو

Leo John. Use of English: Grammar Practice Activities for Intermediate and Upper-intermediate Students (Student's Book). Cambridge: Cambridge Univ. Press, 1985.

MLA استشهاد

Leo John. Use of English: Grammar Practice Activities for Intermediate and Upper-intermediate Students (Student's Book). Cambridge: Cambridge Univ. Press, 1985.

تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.